Optical circuit

摘要

Disclosed is an optical circuit including a transparent plate, which is light-transmittable, and a light shielding plate, which is adhered to the transparent plate with an adhesive and has an opening through which incident light passes, and in which the aspect facing to the opening has, on the side opposite to the transparent plate, projections in an overhang shape toward the center of the opening.

主权项

1. An optical circuit comprising:
a transparent plate which is light-transmittable; a preformed light shielding plate having a top surface and an opposing bottom surface, the light shielding plate having an opening extending therethrough, the preformed light shielding plate being attached to the transparent plate with an adhesive that adheres the bottom surface of the light shielding plate to the transparent plate so that incident light passes through the opening before striking the transparent plate, wherein the light shielding plate has projections in the opening, the projections having an overhang shape extending toward the center of the opening such that the light shielding plate extends further into the opening at the top surface than at the bottom surface; a plurality of optical elements receiving incident light; and a substrate on which the plurality of optical elements is mounted, wherein the substrate is located on the side opposite to the light shielding plate across the transparent plate so that the transparent plate is between the substrate and the light shielding plate.